A method of building a cable termination is provided the termination comprising an outer insulator body 2, a substantially longitudinally extended interior member comprising the electrical cable 4, 5 to be terminated, having a conductor 5.1 for carrying load, an insulating material 3, filled in a cavity between the outer insulator body 2 and the interior member 4, 5 and means 1 for accommodating volume expansions of the insulating material 3 filled within the cavity. The method comprises the steps of: creating the cavity by introducing the interior member 4, 5 into the insulator body 2; filling the insulating material 3 into the cavity and sealing the termination. According to the present invention a volume change compensation member 13 having a predetermined volume to accommodate volume expansions of the insulating material 3 within the cavity is placed into the cavity. Respective terminations are provided as well.